<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>CSS3逼真的蝴蝶飞舞动画 -A5源码</title>
  <link rel="stylesheet" href="css/style.css"/>
</head>
<body>
<div id="container">
  <div id="butterfly">
    <div class="left wing"></div>
    <div class="right wing"></div>
  </div>
</div>
</body>
</html>

